Flush valve



Dec.' 14 192B. 1,610,397 y G. H. THORPE FLUSH VALVE Filed 'August 22 '1925 I ATTORNEYS.

UNITED lSTATES PATENT OFF GEORGE H. THORPE, F HARTFORD, CONNECTICUT.

ICE.

FLUSH VALVE.

Application led August 22, 1925.4 Serial No.- 51,809.

My invention relates more especially to that class of valves that are employed for flushing purposes closets and similar structures,

among others, 1s the proof my invention,

in connection with water and an object duction of a valve .of thisf class that shall be simple in construction, cient in operat-ion, with little liability of beparticularly ellicoming disarranged or getting out of order.

One form of valve embodying 'my invention and inthe construction the objects herein set'out.

and use of which as well as others,

may be attained, is illustrated in the accompanying drawings, in whichsupporting neck.

Figure 1 is a view in -central section through my improved valve on a plane passing through the inlet, outlet and plunger Figure 2 is a top view ofA said valve, on

reduced scale;

Figure 3 is a detail view in central longitudinal section through the valve showing a modified formof construction.

Figure 4 is a`sectional` line 4 4 of Figure 3.

view taken on the In the accompanying drawings the numeral 5 indicates the body of my improved valve having an inlet opening 6 to an inlet chamber 7 and an outlet opening 8 from an outlet chamber 9, a circular wall 10 rising from the bottom of the inlet chamber separating lsaid inlet and outlet chambers.

A cap 11 is securedto the'upper end of the body in any desired manner, and is provided with a recess chamber 12 with a recess said compression chamber.

. a neck 14 on one side wi clamp nut 21 secured' as forming a compression 13 opening out of a recess therein comprising a plunger housing 15, a threaded hole opening from said recess into the compression chamber 12. A retainer 16 is'secured to the end having an ope an annular lip 17.

of the neck, said retainer,A g in its end bounded by A diaphragm 18 composed of any suitable ilexible material. at its edge between the cap 11 and the top edge an upper valve plate 19 plate 20 are clamped to as leather, is clamped -bottom edge of the of the body 5,|and

and a lower valve opposite sides of saiddiaphragm as by means of a recessed by interengaging screw threads to a projection 22 from'the lower side of the plate extending through a hole and in the plate 20, and

19, said projection in said diaphra the nut 21 also ex valve 27 may be threaded into the 15 and The cap 11 has tending upwardly through-the hole in the plate-20. A valve packing 23 is clamped between a flange 24 on the nut 21 and the lower face of the plate 20, said kpacking being adapted to be seated on the upper edge of thel wall 10 that serves as a valve seat. A reliefvalve recess 25 is formed in the projection 22, this recess being preferably closed at its inner en d by a relief valve packing 45, and a vent opening 26 extends from said vent recess through the said relief valve packing and through the clamp nut 21 into the outlet chamber 9.

A relief valve 27 isI seated against the packing within the recess 25, said relief valve having a stem 28 with a head 29 extending'into and located within a valve cylinder 30 extending into the recess. 13. The pressed against its seat as by means of a. spring on the stem 28 thrusting against the valve and against a spring support 31 extending across the recess 25 and having its end inserted in holes in the cylinder 30. It is not absolutely essential, however, that this spring shall'be employed.

or loosely connected with thereduced end of a plunger guide 34 screw 4 hole between the housing the compression chamber 12, the end of said guide being located in the compression chamber. In the structure herein shown the nose is slidably lmounted on the end of the plunger. A sleeve packing 35 envelops the projecting end of the guide and the plunger nose, said packing vresting against a shoulder formed on the on a fiange on said nose.

A pl guide and into an opening in the end of the nose 33, said parts being so arranged that the inner end of this plunger is spaced fromp the bottom ofthe opening. The plunger is forced outwardly as by a spring 37 abutting against a shoulder on the plungerY and a plunger packing 38 may be employed if de sired, and if used it is engaged with the plunger and has its` edge clamped between a shoulder within the retainer 16 and the endof the neck 14.

A handle 39 extends into the housing 15 and is provided with a flanged end @Testing against the lip 17,- the handle being enough plunger guide and ilo ` the plunger smaller than the opening to permit of a tipping movement ofthe handle. Its end rests against the end ofthe plunger 36,-in the structure herein shown this end comprising the head of a bolt that clamps the packing 38 to the plunger. An equalizer valve 41 is located .in an opening extending through the'platcs 19 and 20, said valve being accessible through an opening closed by a screw plug 42.

The operation of the. device will be readily understood by those skilled in the art, it being briefly stated that the handle 39 being tipped to oneside the plunger 3G is moved inwardly until lit engages with the plunger nose that in turn pressing against the tapered.

the vent opening 2G, whereupon pressure is again built up in the chamber 12 through the equalizer 41 until the vdiaphragm is moved downwardly and the valve 23 is again seated to stop the flow of water through the outlet 8.

By providing a double packing for the plunger 36 leaking of fluid around the Aplunger and through the neck 14 is obviated and the elastic connection comprising the sleeve packing 35 between the .plunger nose and the plunger guide serves the double purpose of a means for returning the plunger nose to its normal position and also for packing the joint at this point, said sleeve being located in the compression chamber 12 partaking of the pressure therein to seal the joint. The plunger is guided at one end by the hole in the plunger guide and at its opposite end by the tip 32 eX- tending into a'hole in the side of the walll of the recess 13 and the spring 37 forcing out against the handle relieves any tendency of the latter to become wobbly.

The construction of the plates 19 and 20 j clamping the diaphragm 18, the valve packing 23 and the packing 45 between them.

said plates being forced together by the nut 21, enables these elastic members to be compressed to such extent that no leakage around them will occur.

In the structure shown in Figures 3 and 4 the spring support for the-spring of the valve 27 is located outside of the cylinder 30, this support 42 being of semi-circular shape with its ends projecting toward each other, said endsI 43 overlying a flange on the lower en of a cap 44 within which the yspring for they valve 27 is located, said spring being thus held at one end by the cap the ,supports 42, and the latter is held by the cylinder 30.

In`accordance with the provisions of the patent statutes I have described the principles of operation of my invention, together .withI the device which I now consider toA represent the best embodiment thereof; but I desire to vice shown in only illustrative and that the invention maybe carried out by other means and applied to uses other than those above set out.

I claim- 1. A iush valve body having an inlet, an outlet and a compression chamber, a diahave it understood that the de.-

which in turn is held4 by the 'ends of phragm separating said compression and other chambers, clamping plates on vopposite sides of the diaphragm, one of said plates having a projection extending through theV other plate, a lan'gedclamping nut extending through said other plate and screw threadedly engaging said projection to secure said plates together, located between the flange on said` nut and the face of one of said plates, and means for relieving the pressure in the compression chamber.

a valve packing- 2. A Hush valve body having an inlet, an

outlet'a'nd a compression chamber, a diaphragm separating said compression `and other chambers, clamping plates on opposite sides of said diaphragm, one of said plates having a projection with a relief valverecess therein, a nut fitting said projection to.

draw the plates together and clamp them to the diaphragm, a valve packing located between said nut and theface of one of said plates and forming the bottom of said relief valve recess, and means for operating said relief valve to reduce the compression in said compression chamber.

3. A flush valve4 body having an inlet, an outlet and a compression chamber, a dia-- phragm separating said compression and other chambers and. supporting a main valve, plates secured to opposite sides of said diaphragm, one of said plates having a projection forming a cylinder extending into a recess in the top of the valve body, a valve located in arecess in one of said plates and having a stem extending into said cylinder,

said valve closing a vent opening from said compression to said outlet chambers, and

outlet, and a compression chamber, a diay phragm separating said compression and other chambers, amain valve supported by said diaphragm tol close the outlet from said 'valve body, a relief valve to -close a vent opening from the compression-to the outlet chambers, said valve havinga stem extending upwardly within the compression chamber, a plunger engaged with said stem to` op# crate said valve, and means for operating said plunger.

5. A flush valve body having an inlet, an outlet and a compression chamber, a dia- 'phragm separating said compression and other chambers, a main valve supported by said diaphragm to close an outlet opening from said valve body, a relief valve t0 close a vent opening between said compression and outlet chambers, said relief valve having a stem, a headlocated on said stem and having a sloping surface, a member longitu dinally movable to engage said sloping sursaid body, a relief valve to controla vent` face and remove said valve from its seat, and means for operating said member.

6. A flush valve body having an inlet, an outlet and a compression chamber, a diaphragm separating vsaid compression and other chambers, a plate carried by said diaphragm and having an upwardly extending projection forming a cylinder, a main valve carried by said diaphragm to control flow of 'liquid through said body, a relief valve to close an opening between said compression and outlet chambers, a stem secured to said valve and having a sloping head located in said cylinder, a memberprojecting through a hole in the wall of the cylinder to engage said head, and 'means for operating said member to remove said relief valve from its Seat. y

7. A flush valve body having an inlet, an outlet andl a compressionv chamber, a diaphragm separating said compression and other chambers, a main valve carried by said diaphragm to control flow of liquid through opening from said compression to said outlet chambers, a membermovably mounted to operate said relief valve, a plunger permanently connected with said memberl to oper' ate it and having a vlimited movement inde- .,pendently. thereof, and means for operating said plunger.

8. A flush valve body having an inlet, an outlet and a compression' chamber, a diaphragm separating said chambers, a main valve carried bysaid diaphragm to control iow of liquid through said body, a relief valve to control a'vent opening from said compression to said outlet chambers, a plunger nose adapted to be operatively connected with the relief valve-to operate it', a guide, means for connecting Vsaid guide and nose to permit movement of cnc independvalve to control a vent opening from said compression to said outlet chambers, a

ently of the .other, and a plunger operatively engaging with said nose to operate it.-

9. A fiush valve body having an inlet, an'

outlet and a compression chamber, a diaphragm separating said chambers, a main valve operated by said diaphragm to control vflow of liquid through said body, a relief plunger nose operatively connected with said ing within which said plunger is' located,

and means for operating said plunger;

11. In combination in a flush valve `in- ,cluding a relief valve, a tapered head connectedvvithl the relief valve, a plunger nose engaged with said tapered head, a plungerguide, an elastic sleeve connecting said guide and nose, the latter having a movementin-j dependently of said guide, a plunger extending through said guide and .loosely engaging said nose, a' plunger packing closing the housing within which saidplunger extends, and means for operating lsaid plunger..

12. In combinationin a fiuslLvalve, a relief valve therefor, lan enlarged tapered head rigidly connected with said relief valve and having a tapered under Surface,a `plunger independently longitudinally movable with respect to said head to operate it, and means for operating said plunger. j

. 13.A In combination in a Hush valve comprising a body having an inlet, an outlet and a compression chambeigza diaphragm sepa- I rating said compression and other chambers, a main valve supported by said diaphragm,

an auxiliary valve having a stem Aprojecting' into said compression chamber, and an initial operating device extending 1nto said chamber at substantially right angles to the axis of the opening for the auxiliary valve,

said operating member being connected with said auxiliary valve for operation thereof.

14. In combination in a. vHush valve comprising a body having an inlet, an outlet and a compression chamber, a diaphragmseparating-sald compression and other chambers,

a mam valve-supported'by said diaphragm,

an auxiliary valve vhaving av stem projecting into said compression chamber, 4an initial operating device extending into said' cham' ber at substantially right angles to the axis of the opening for4 the auxiliary valve, said.

operating member being connected with said auxiliary valve for operation thereof, and a 'valve controlled equalizing port located in and projecting through said diaphragm at'v one side of the center thereof outside of the outlet chamber.`

15. In combination ini avflush valve comprising a. body :having an inlet, an outlet `said compression chamber for engagement and operation of said auxiliary valve, said device having means whereby its movement into the chamber will reduce the space therein and thereby increase the compression inV said chamber.

16. In combination in a flush valve com.

prisingA a body, having an inlet, an outlet and a compression chamber, a diaphragm separating said compression and other cham-` bers, a main valve supported by saiddiaphragm, anauxiliary valve located 'in the compression, chamber, and an initial operating device Whose line of actionis substan-l tially at right angles to the axis of the diaphragm opening for the auxiliary valve, said operating member being connected with said 'auxiliary valve for operation thereof.

GEORGE H. THORPE. 

